Problems with buddy press functionality and visual composer

Quite often without any reason the group mansory and members mansory are not displayed. They are there but hidden and one may see them only when inspects the code or putting over the mouse.

This happens without any reason. It has happened again and we reset the them from the beginning. This is something that we do not want to do again though since we have completed the website and we do not wish to redo the whole process from the beginning.

Please check on your own the site specifically in the categories activity, connection and communities as shown in the main menu.

In addition some functionalities of visual composer do not function when put in the static page.